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Cheapest Iodine (as potassium iodine) on iHerb

Ranked by real cost per 10 mcg of Iodine (as potassium iodine) — cheapest value first.

Prices updated Jul 25, 2026 · 15 products · Prices in USD

The priciest option here costs about 36.4× more per 10 mcg of Iodine (as potassium iodine) than the best-value pick California Natural. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mcg
1
California Natural, Hair, High Potency, 30 Tablets
California Natural, Hair, High Potency, 30 Tablets
California Natural
150 mcg305.900.013View on iHerb →
2
NaturesPlus, Animal Parade, Children's Chewable Multivitamin Supplement, Cherry, 90 Animal-Shaped Tablets
NaturesPlus, Animal Parade, Children's Chewable Multivitamin Supplement, Cherry, 90 Animal-Shaped Tablets
NaturesPlus
100 mcg4516.110.036View on iHerb →
3
NaturesPlus, Animal Parade, Multivitamin, Children's Chewable Supplement, Cherry, Grape & Orange, 90 Animal-Shaped Tablets
NaturesPlus, Animal Parade, Multivitamin, Children's Chewable Supplement, Cherry, Grape & Orange, 90 Animal-Shaped Tablets
NaturesPlus
100 mcg4520.360.045View on iHerb →
4
NaturesPlus, Animal Parade Gold®, Children's Chewable Multivitamin Supplement, Cherry, Grape & Orange, 120 Animal-Shaped Tablets
NaturesPlus, Animal Parade Gold®, Children's Chewable Multivitamin Supplement, Cherry, Grape & Orange, 120 Animal-Shaped Tablets
NaturesPlus
100 mcg6028.860.048View on iHerb →
5
Swanson, Adult Multivitamin Gummies, Orange, Cherry, Strawberry , 60 Gummies
Swanson, Adult Multivitamin Gummies, Orange, Cherry, Strawberry , 60 Gummies
Swanson
80 mcg3011.990.050View on iHerb →
6
PEScience, TruMulti, Men's Formula, 90 Capsules
PEScience, TruMulti, Men's Formula, 90 Capsules
PEScience
150 mcg3024.990.056View on iHerb →
7
Bluebonnet Nutrition, Rainforest Animalz®, Kids Multiple, Assorted Fruit, 180 Chewables
Bluebonnet Nutrition, Rainforest Animalz®, Kids Multiple, Assorted Fruit, 180 Chewables
Bluebonnet Nutrition
50 mcg9030.090.067View on iHerb →
8
Divine Health, Dr Colbert M.D. Thyroid Zone, 90 Veggie Capsules
Divine Health, Dr Colbert M.D. Thyroid Zone, 90 Veggie Capsules
Divine Health
150 mcg3038.690.086View on iHerb →
9
Fairhaven Health, FertilAid® for Women, 90 Capsules
Fairhaven Health, FertilAid® for Women, 90 Capsules
Fairhaven Health
150 mcg3038.990.087View on iHerb →
10
NaturesPlus, Source of Life®, Original Mini-Tabs, Multivitamin & Mineral Supplement with Concentrated Whole Foods, 180 Tablets
NaturesPlus, Source of Life®, Original Mini-Tabs, Multivitamin & Mineral Supplement with Concentrated Whole Foods, 180 Tablets
NaturesPlus
150 mcg3041.180.092View on iHerb →
11
Emerald Laboratories, Thyroid Health, 60 Vegetable Capsules
Emerald Laboratories, Thyroid Health, 60 Vegetable Capsules
Emerald Laboratories
150 mcg3041.360.092View on iHerb →
12
Emerald Laboratories, CoEnzymated Women's 1-Daily Multi, 60 Vegetable Caps
Emerald Laboratories, CoEnzymated Women's 1-Daily Multi, 60 Vegetable Caps
Emerald Laboratories
30 mcg6036.860.205View on iHerb →
13
Codeage, Hair Gummies, Sugar Free, Strawberry, 60 Gummies
Codeage, Hair Gummies, Sugar Free, Strawberry, 60 Gummies
Codeage
42 mcg3029.990.238View on iHerb →
14
Emerald Laboratories, Coenzymated Women's 45+ 1-Daily Multi, 30 Vegetable Capsules
Emerald Laboratories, Coenzymated Women's 45+ 1-Daily Multi, 30 Vegetable Capsules
Emerald Laboratories
30 mcg3022.460.250View on iHerb →
15
6AM Run, Vitamin Kup Coffee, Caramel Sea Salt, 12 Single Serve Cups, 4.23 oz (120 g)
6AM Run, Vitamin Kup Coffee, Caramel Sea Salt, 12 Single Serve Cups, 4.23 oz (120 g)
6AM Run
24 mcg1213.750.477View on iHerb →

How we rank Iodine (as potassium iodine)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.